tracefile.cc revision 13256
1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#include "systemc/utils/tracefile.hh" 31 32#include <ctime> 33#include <iomanip> 34 35#include "base/logging.hh" 36#include "base/output.hh" 37#include "sim/core.hh" 38#include "systemc/core/time.hh" 39#include "systemc/ext/core/sc_main.hh" 40#include "systemc/ext/core/sc_time.hh" 41#include "systemc/ext/utils/functions.hh" 42 43namespace sc_gem5 44{ 45 46TraceFile::TraceFile(const std::string &name) : 47 _os(simout.create(name, true, true)), timeUnitTicks(0), 48 timeUnitValue(0.0), timeUnitUnit(::sc_core::SC_PS), _traceDeltas(false) 49{} 50 51TraceFile::~TraceFile() 52{ 53 simout.close(_os); 54} 55 56std::ostream &TraceFile::stream() { return *_os->stream(); } 57 58void 59TraceFile::set_time_unit(double d, ::sc_core::sc_time_unit tu) 60{ 61 timeUnitValue = d; 62 timeUnitUnit = tu; 63 64 double secs = d * TimeUnitScale[tu]; 65 for (tu = ::sc_core::SC_SEC; tu > ::sc_core::SC_FS; 66 tu = (::sc_core::sc_time_unit)(tu - 1)) { 67 if (TimeUnitScale[tu] <= secs) 68 break; 69 } 70 71 uint64_t i = static_cast<uint64_t>(secs / TimeUnitScale[tu]); 72 std::ostringstream ss; 73 ss << i << " " << TimeUnitNames[tu] << " (" << _os->name() << ")"; 74 SC_REPORT_INFO("(I703) tracing timescale unit set", ss.str().c_str()); 75} 76 77void 78TraceFile::finalizeTime() 79{ 80 ::sc_core::sc_time time; 81 if (timeUnitValue == 0.0) { 82 // The time scale was never set. Use the global time resolution. 83 time = ::sc_core::sc_get_time_resolution(); 84 } else { 85 time = ::sc_core::sc_time(timeUnitValue, timeUnitUnit); 86 } 87 timeUnitTicks = time.value(); 88} 89 90} // namespace sc_gem5 91